Vapor-burner.



No. 735,073.- PATENTED AUG. 4, 1903-- W L. DUNHAM & F. H. HOUGH.

VAPOR BURNER.

APPLICATION FILED 00124, 1902.

N0 MODEL.

UNITED STATES Patented August 4, 1903.

PATENT OFFICE.

WILLIAM L. DUNHAM AND FRANKLIN H. HOUGH, OF WASHINGTON, DISTRICT OF COLUMBIA.

VAPOR-BURNER.

SPECIFICATION forming part of Letters Patent No. 735,073, dated August 4, 1903.

Application filed October 4, 1902.

T0 aZZ whom it may concern.-

Be it known that we, IVILLIAM L. DUNHAM and FRANKLIN H. HOUGH, citizens of the United States, residing at Washington, District of Columbia, have invented certain new and useful Improvements in Vapor-Burners and we do declare the following to be a full, clear,and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to certain new and useful improvements in vapor burners; and it has for its object the provision of an inexpensive, durable, and efficient burner designed for heating purposes, in the use of which either crude or refined petroleum or other oils which are adapted, when subjected to heat, to generate gas may be used, the burner being equally adapted for use when supplied with oil or with an admixture of oil and steam or water, as may be preferred.

An essential object of the invention resides in the peculiarity of construction, whereby the burner maybe readily and quickly lighted without the necessity of applying heat thereto for a great length of time, as is necessary with most burners of this character in which it is required that the entire burner should be thoroughly heated in order to generate gas before the same can be ignited.

Other objects and advantages of the invention will hereinafter appear.

To these ends and to such others as the invention may pertain the same consists in the novel construction of the burner and in the peculiar arrangement, combination, and adaptation of parts, all as will be hereinafter more fully described, shown in the accompanying drawings,and then specifically defined in the appended claims.

The invention is clearly illustrated in the accompanying drawings, in which- Figure l is a side elevation of a heatingstove equipped with our improved burner, a portion of the stove being broken away in order to more clearly illustrate the application of the invention. Fig. 2 is a central $eria1No.125,904. (No model.)

vertical section through the burner and its connections. Fig. 3 is a sectional detail taken horizontally through the body of the burner. Fig. 4 is a side elevation of the inner face of one of the shellsections, showing the spiral groove formed therein. Fig. 5 is an enlarged detail view in section vertically through a portion of the inner and the outer shell and coil seated in the grooved wall of the outer shell.

Reference now being had to the details of the drawings by letter, Arepresents the body portion of the burner, which in general form is cylindrical and consists of two vertical halves or sections each having cast integral therewith vertically-disposed flanges B, through openings b in which bolts are passed in securing the sections together,as shown in Fig. 1 of the drawings. The vertical walls of the burner are thin, and the inner wall is spirally grooved to receive the oil-supply pipe, which is wound spirally around the inner wall of the burner within said spiral groove, and the oil-pipe thus wound within the inner wall of the burner is protected from the direct heat by means of a thin wall or casing of sheet metal 0. By the provision of the grooving of the wall as described, the tub-. ing when inserted in place will be partially surrounded by the walls of the groove be tween the casing, the heat which is retained in the wall of the outer shell to radiate heat over a large amount of the surface of the coil-pipe, and owing to the thickness of the outer shell the heat will be retained by the metal and serve to thoroughly vaporize the oil in the coil, and at the same time the coil is shielded from direct contact with the flame.

D is a metallic plate which forms the upper face of the burner, said plate being securely bolted to thenpper face of the casing, as shown in Fig. 2 of the drawings. An arm or extension D of said plate D is bent downward and attached to the outer edge of a con caved disk E, which disk serves as aseat for the flame when the burner is in use, as will presently appear.

F is a standard, the screw-threaded lower end of which has engagement with an opening in the metallic plate D, the said screwis extended through an opening formed in the side of the stove, is provided with a suitablehandle or button H by means of which it is rotated when it is designed to raise or lower the needle-valve, as will be readily understood.

J is the oil-supply pipe, which enters the interior chamber of the burner at its upper end and'is Wound spirally around the inner wall of the burner within the spirally-formed groove therein,and after thus winding spirally from the top to the lower edge of the burner the said pipe extends upward through the.

plate D at the upper end of the burner and at its extreme upper end communicates, by means of the passage K, with the chamber L. After the oil-supply pipe has been thus seated within the spiral grooves formed in the inner wall of the burner the metallic shell or plate 0 is inserted, thus forming to the spirallygrooved coil-pipe a protect-ion from the direct raysof heat.

The burner is suspended over the concaved disk E in such a manner as to allow a slight intervening space between the lower end of the burner and the concaved inner face of the disk, as shown in Fig. 1 of the drawings.

The oil-supply pipe J is designed to lead from any suitable oil-receptacle in which oil is confined under pressureas, for instance, the oil-tank M, which tank is provided with a supply-valve N, through which air may be forced by means of a suitable air-pump.

From the foregoing description of the invention its operation and advantages will be readily understood. When it is designed to light the burner, it is simply necessary to apply heat to the burner by means of a torch or otherwise. The thin shell or partition 0, which separates the inner chamber of the burner. from the spirally -coiled oil-supply pipe, will serve to permit the heat from the torch or other igniting device to be ignited at once to the spirally-coiled pipe, and the gas will be thus generated without the necessity of heating the entire casting forming the burner.

This-spiral arrangement of thepipe withinthe burner presents a very large heating-surface of pipe tothe heat and greatly expedites the lighting of the burner. When the heat is thus applied to the burner for a sufficient time to generate gas and the gas thus generated has entered the chamber L, it is simply necessary to turn the button or handle J, thus raising the needle-valve from its seat the required distance and permitting the gas to enter the interior of the burner, where it is ignited at the lower edge of the burner, and the heat and flame coming into contact with the concaved inner face of the disk E are deflected upward and outward against the inner walls of the stove. Itwill be seen at once that by the arrangement described a perfect control of the gas-supply to the burner is at all times assured.

While we have shown the burner as substantially cylindrical in cross-section, it is at once evident that this particular form is not necessary and that the burner may be made rectangular or of other forms, if desired, the essential feature residing in the spiral arrangement of the oil-supply pipe within the inner chamber of the burner and in the protecting of the pipe by means of a thin protecting shell or plate, as described.

Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. A vapor-burner comprising an outer shell of metal, the inner concave face of which is spirally grooved, a vaporizing-coil positioned in said groove, an inner shell retaining said coil in place in the groove, and a metal valve regulating a duct which communicates between'the coil and the interior of the shell, as set forth.

2. A vapor-burner, comprising two shells, the outer of which is made up of the two complemental sections having their inner concave faces spirally grooved, a vaporizing-coil seated in said groove, an inner shell retaining said coil in place, and a valve regulating a duct which communicates between the coil and the interior of said inner shell,as setforth.

3. A vapor burner, comprising an outer conical-shaped shell having a wall of varying thickness, the inner concave face of which is spirally grooved, a vaporizing-coil seated in said groove, an inner cylindrical shell retaining the coil in said grooves for regulating a duct which communicates between said coil and the interior of the inner shell, as set forth.

4:. A vapor-burner, comprising an outer conical-shaped shell, made up of two complemental sections having their concave faces spirally grooved, a vaporizing-coil seated in said grooves, an inner cylindrical shell retaining said coil in place, and a valve regulating a duct which communicates between said coil and the interior of the inner shell, as set forth.

5. A vapor-burner, comprising an outer tion with an outer conical-shaped shell,the inner concave wall of which is spirally grooved,

a vaporizing-coil seated in said groove, an inner cylindrical shell retaining said coil in place, a valve regulating a duct which communicates between said coil and the interior of the inner shell, and a deflecting-disk positioned underneath the shells, as set forth. 

